daeling



(No Model.) v'2 Sheets-Sheet 1;

J. DARLING.

PUMP.

Patented Jan. 8, 1889".

WITNESSES,

IlNrTnn STATES PATENT Trice JOSEPH DARLING, OF PETROLIA, PENNSYLVANIA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 395,772, dated January8, 1889.

Application filed November l0, 1887. Serial No..254,821. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH DARLIN G, a citizen of the United States,residing at Petrolia, in the county of' Butler and State ofPennsylvania, have invented certain new and useful Improvements inPumps; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference heing hadto the accompanying drawings, and to letters or figures ofreterence'marked thereon, which form a part of this speciiication.

Figure l is a side elevation of my improved pump. Fig. 2 is a verticalsection from a to b, Fig. l. Fig. 3 is a plan view of part z'. Fig. l isa vertical section from b to ai, Fig. l. Fig. 5 is a vertical sectionfrom to y, Fig. 1. Figs. G, 7, 8, 9, lO, ll, and l2 are detail views ofparts of my improved pump.

The invention relates to improvements in pumps for wells and othercavities; and it consists in the construction and novel combination ofparts, as hereinafter set forth.

Referring to the (lrawings by letter, A designates the well-tubing, andB a socket for the reception of a removable barrel or section, C, inwhich reciprocates the plunger D, attached to the lowest end ot thesection of the pump-rod d. The socket is connected to the adjoiningsection of the tubing A by a coupling-piece, and is of somewhat lessdiameter than the tubing to permit the barrel and plunger being removedwithout binding.

E is a section connected to the lower end of the socket B by a screwcoupling-piece, e, in its lower end. The section E is provided with awide circumferential recess or groove,

c', having the series of perforations e2, and has on its interior abovesaid perforations the circumferential flange f, which serves as a seatfor the shoulder f ot' the tubular trap-valve F, provided with theperforations f2. rlhe valve has a flange, f3, around its lower end,which rests against a circumferential shoulder, f "L, within the sectionE, the said shoulder serving as a seat for the iiange. rThe section hasconsequently two valve-seats--the flange f above the inlet-perforations,upon which the shoulder f rests when the valve is closed, and theshoulder fL below the perforations, and upon which the flanges f3 rest.

This serves to hold the pressure of the iiuid in the tubing while theremovable barrel is withdrawn without permitting the fluid or air toescape into the well;

G is a coiled spring bearing against the screw-plug e4, holding thevalve up against it-s seat.

Then in use, the socket is inserted in the well with the circumferentialrecess c opposite the point from which the fluid is to be pumped, sothat the fluid can enter the perforatio'ns e?. Then when the tubularvalve is depressed from its seat the fluid will pass also through theperforations f2 and iow up through the tubular valve. Then the downwardpressure is taken off the valve, the spring G returns it to its seat.

H is ahollow valve-block screwing into the lower end of the removablebarrel C, and having the upwardly-opening valve 71 at its upper end, and7L h are circumferential packing-strips that surround the block belowthe valve and serve to keep the lower end of the barrel C tight in thesocket. The said strips are preferably cup-shaped, as shown.

I is a hollow valve-block7 provided with a threaded lower end, c, toengage within the tapped upper end ot the barrel C, and thread ed at itsupper end to engage with an upwardlyopening check-valve, i, having' ahollow block, i', through which the plunger-.rod passes. The valve-blockI is also surrounded hy a packing-strip, i?, to keep the upper end ofthe barrel tight in the socket, and provided with a space, i3, to allowthe fluid to fill the space between the packing-strips t2 and lt', sothatV the pressure on the interior of the barrel will be equalized bythat outside. If the upper packing, i2, is not used, the space t3 is notmade, as the space exterior to the barrel will be filled with the fluidfrom the valve i. The barrel is inserted into the socket until the loweropen end of the valve-block H presses down the tubular valve F againstthe action of the spring G, and permits the fluid to iiow up into thebarrel through the perforations c2 and f2v and through the saidvalve-block.

The hollow plunger D is provided with the upwardly-opening valve J, andis surrounded at proper points by the packing ring or cups jj, whichkeeps it tight within the barrel.

Standing centrally from the lower end of IOO the plunger is ascrew-threaded extension, M, provided with a longitudinalnotch, m., Thesaid projection is adapted to engage in a threaded opening, N, in theupper end of the valve-block H.

O is a circular nut provided with opposite lugs, one of which isradially notched or recessed, as at o, for the reception of the pivoteddetent I). The said detent has its free end toothed or threaded, so asto form, when turned fully within the notch 0, a continuation of thethreads of the nut O. rlhe said nut is designed to protect the threadoli' the projection M and the thread of the opening N from damageshould. the plunger accidentallyfall on the valve-block. The normalposition of the nut O on the extension M is on the extreme end andturned so as to bring the detent in line with the notch m, within whichthe upper tooth ot' the detent projects as the detent falls slightly onits pivot, as shown in Fig. l2, thus preventing it :from turning. lVhenit is desired to connect the plunger-rod to the valve-block thread, theplunger is lowered thereon and turned until the opposite lugs ot' thenut O enter the transverse slots on the top of the valve-block, carryingthe detent out of engagement with the notch on, and continuing thethread of thenut so that the extension M may be screwed down into thethread of the valve-block. The barrel is then fast to the plunger andthe pump-rod can be lifted out therewith. Then the plunger-rod isdetached from the valveblock H, the pump-rod may be drawn upward in theremovable barrel, and a shoulder on it above the plunger will come incontact wit-h the lower part of the check-valve block I, so as to jarthe barrel and loosen it it it sticks in the socket, so that it can beeasily removed.

Should I desire to use the trap-valve alone with the common form otvalves, I use thc nut O and projection M on. this 'plunger' to draw thestanding' valve, which will act on the t ap-valve. The fluid tampin orweight a or pressure of the fluid in the tubing, acting directly on thetop ot' the removable barrel and bottom packer ot the saine, serves tohold it down securely in its seat, overcoming the necessity oi' usinggrabs or catches to anchor the same. The pressure ot' fluid also has anupward action on the tubular trap-valve when the removable barrel orvalves have been withdrawn, making it positively acting and assuringtight joints.

In pumping, 7L is the stationary valve, and .I the reciprocating valve,of the pump, /L' being merely Va check-valve commonly known as th eCrocker check. Bythe described construe tion the barrel may be putinplace and re- .moved without displacing the tubing, letting the fluidback into the well, or allowing the air to lill the vacuum created by avacuum or gas pump.

The check-valve is held steadily and in proper position by screwing intothe barrel, and the valves need not be backed.

It' desired, the check-valve may be replaced by a bushing of suitableconstruction. The trap-valve F prevents all the fluid or air returning'below the-socket when the barrel and plunger are removed.

Any style valves may be used in thepump mechanism proper.

I do not in this application claim, broadly, the combination, with atrap-valve, of a tripper for positively operating valve, nor theconstruction of' the barrel with a vent by which the water may pass outand iill the space between the said barrel and the tubing in such manneras to equalize the pressure on opposite sides of the said barrel toprevent bursting the saine, for the reason that such features areincluded in the claims of a separate application i'or patent filed by meDecember Il, 1888, and numbered 293,32i.

Having described my invention, what I claim isl. In a pump, thecombination,with a plunger and removable barrel, of the socket hav- -ingthe lower section, E, provided with a perforated circumferential recessand having its lower end closed, the perforated tubular valve hav-ingseats within said section, and the spring holding said valve up againstits seat, substantially as speciiied.

2. In a pump for wells and other cavities, the combination ot' theplungerprovided with an upwardly-opening valve, the removable barrelhaving an upwardly-opening valve in its lower end, the check-valvescrewing into the upper end of;l the barrel, the section E, providedwith a perforated circumferential recess and having its lower endclosed, the perforated tubular valve having seats within said section,and the coiled spring holding said valve on its seat, substantially asspecified.

3. In a pump, the combination, with the tube B and the plunger D, of thecircular nut O, provided with the radial notch o, and the de tent P,having the toothed end corresponding to the thread of the circular nutO, engaging the lower end ot' the projection M, substantially asspecified.

In testimony whereof I aflix my signature in presence of two witnesses.u p

Y JOSEPH DARLIN G. lVitnesses:

JOHN ELANBARGER,

NELSON SUTTON.

IOO

IIO

